Monday, September16, 2019 L-36.com


Marine Weather and Tides
Dover, MA

Version 3.4
NOTICE
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:24AMSunset 6:55PM Monday September 16, 2019 2:05 AM EDT (06:05 UTC) Moonrise 8:24PMMoonset 8:31AM Illumination 96% Phase: Waning Gibbous; Moon at 17 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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ANZ230 Boston Harbor- 116 Am Edt Mon Sep 16 2019
Rest of tonight..NW winds around 5 kt. Waves 1 foot or less.
Mon..NW winds 5 to 10 kt, becoming W in the afternoon. Waves 1 foot or less.
Mon night..NW winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft after midnight.
Tue..NE winds 5 to 10 kt. Waves around 2 ft in the morning, then 1 foot or less.
Tue night..NE winds 5 to 10 kt. Waves 1 foot or less.
Wed..NE winds 5 to 10 kt. Waves around 2 ft.
Wed night..NE winds 5 to 10 kt. Waves 1 foot or less.
Thu..N winds around 5 kt, becoming E in the afternoon. Waves 1 foot or less.
Thu night..S winds around 5 kt, becoming sw after midnight. Waves 1 foot or less.
Fri..SW winds around 5 kt, becoming se in the afternoon. Waves 1 foot or less.
Fri night..SW winds around 5 kt, becoming W after midnight. Waves 1 foot or less, except up to 4 ft at the outer harbor entrance. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
ANZ200 116 Am Edt Mon Sep 16 2019
Synopsis for massachusetts and rhode island coastal waters.. A weak wave of low pres will track along a stalled frontal boundary, located just south of the south coast, overnight tonight and Mon. Large high pres will build slowly south from quebec Mon night through Fri. For information on possible hazardous weather beyond the 24-36 hour forecast period, please visit www.weather.gov/boston and follow the current hazards link above the map on the left.


7 Day Forecast for Marine Location Near Dover, MA
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location: 42.27, -71.27     debug


Area Discussion for - Boston, MA
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Fxus61 kbox 160250
afdbox
area forecast discussion
national weather service boston norton ma
1050 pm edt Sun sep 15 2019

Synopsis
High pressure will bring an extended period of dry weather into
next weekend, other than perhaps brief spot showers Monday. The
high will initially be accompanied by unseasonably cool weather
Tuesday into Thursday morning. A gradual warmup is expected
with temperatures possibly rebounding into the 80s Friday
through Sunday.

Near term until 6 am Monday morning
1030 pm update...

band of mid level clouds crossed the region through this evening
as they tended to dissipate as they moved offshore. Otherwise,
mostly clear skies with patchy high thin clouds crossing the
region as seen on latest goes-east nighttime microphysics
satellite imagery and 02z observations. However, some broken
clouds from 050-060 from N of kore to kaqw.

A thin band of showers extending from near ksyr to kalb, with
10sm -ra reported at kalb at 02z. Somewhat drier airmass across
the border into W mass so should be dry, but can not rule out a
few sprinkles moving across through around midnight or so.

Previous forecast in rather good shape, but did refresh to bring
conditions current.

Previous discussion...

noting an increase in mid and high clouds as expected, with some
very light showers which should dissipate as they move east into
sne. Expect low temperatures mainly in the 50s by daybreak
Monday. Winds will be rather light too, so a pleasant night of
weather is on tap for the region.

Short term 6 am Monday morning through Monday night
Monday...

a weak wave of low pressure across the southern great lakes
early Mon morning will slide southeastward through the day.

This will take the better forcing moisture to the southwest of
our region. So while we probably will see a period of some
cloudiness, at least across our ct ri and SE ma expect little if
any rain other than a few spot showers. Greatest risk will be
across northern ct and near the south coast, but regardless dry
weather should dominate in this region too.

High temperatures on Monday will probably still reach the lower
to middle 70s in many locales given at least some partial
sunshine.

Monday night...

high pressure in quebec will force a cold front south of the
region Monday evening. While dry weather should continue Monday
night it will turn cooler on northerly winds. Low temperatures
by daybreak Tuesday should mainly be in the middle 40s to the
lower 50s.

Long term Tuesday through Sunday
Highlights...

* high pressure brings dry weather Tuesday through Sunday
* cooler than normal tue-thu, warming Friday into the weekend
details...

precipitation...

an very dry forecast in the extended, painting the picture for a
very pleasant week weekend in southern new england. Building
surface high pressure with a persistent mid level ridge set up
to our immediate west will keep southern new england under a dry
n NW flow through at least Saturday. No significant weather to
speak of.

Temperatures...

a very fall-like feel will arrive beginning Tuesday and lingering
through at least Thursday. This as N NE flow sets up around the
sfc-h85 high ushering in cold canadian air. H85 temps drop to
the 2-5c range by mid week, with the coldest period likely being
wed and Thursday morning. Highs Tuesday and Wednesday won't
break out of the 60s, compared to average highs of 70-75. Steady
warming is expected thereafter. Thursday some 70s return, then
we get well into the 70s Friday and back into the 80s for the
weekend. Yes, the return of summer-like temperatures is possible
this weekend into early next week as the ridge moves overhead.

Before that, though, we'll also be dealing with chilly low
temperatures. Given the dry, calm, clear nights we'll get some
decent radiational cooling, with lows bottoming out Thursday
morning in the 40s before rebounding to the 50s by the weekend.

Tropical storm humberto...

we continue to expect little to no impact from tropical storm
humberto as model guidance shows the surface high helping to
deflect it out to sea well to our south and east. As mentioned
previously, the only real impact we may see would be increased
swells for the ma ri waters, bringing rough surf and strong rip
currents around Friday Saturday.

Aviation 03z Monday through Friday
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Monday night ... High confidence.

02z update...

overnight... Mid and high clouds are increasing butVFR
conditions continue. Light winds.

Monday...VFR conditions dominate despite some mid level
cloudiness. Low risk of brief MVFR conditions south of the ma
turnpike with a spot shower or two possible. Rather light
winds.

Monday night...VFR. North winds of 5 to 10 knots.

Kbos terminal... High confidence in taf.

Kbdl terminal... High confidence in taf.

Outlook Tuesday through Friday ... High confidence.

Tuesday:VFR. Breezy.

Tuesday night:VFR.

Wednesday:VFR. Breezy.

Wednesday night through Friday:VFR.

Marine
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Monday night ... High confidence.

Overnight and Monday... Weak pressure gradient will allow winds
and seas to remain well below small craft advisory thresholds.

Monday night... A cold front will cross the waters Monday
evening. Decent mixing in the cool air advection pattern should
yield a period of northerly lower 20 knot wind gusts and 2 to 4
foot seas. We can not rule out brief SCA conditions, but threat
is too marginal to hoist any headlines at this point.

Outlook Tuesday through Friday ... Moderate confidence.

Winds less than 25 kt. Areas of seas approaching 5 ft.

Box watches warnings advisories
Ct... None.

Ma... None.

Ri... None.

Marine... None.

Synopsis... Frank bw
near term... Evt bw
short term... Frank
long term... Bw
aviation... Frank evt bw
marine... Frank evt bw


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BHBM3 - 8443970 - Boston, MA 13 mi54 min 69°F 1017.1 hPa
44013 - BOSTON 16 NM East of Boston, MA 33 mi76 min NW 9.7 G 12 67°F 65°F2 ft1015.5 hPa (+0.0)60°F
FOXR1 - 8454000 - Providence, RI 33 mi48 min Calm G 2.9 66°F 68°F1017.1 hPa
PVDR1 34 mi48 min S 4.1 G 4.1 65°F 1017.4 hPa58°F
CPTR1 - 8452944 - Conimicut Light, RI 38 mi48 min WSW 2.9 G 4.1 66°F 70°F1017 hPa
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 39 mi48 min SW 6 G 7 68°F 1017.2 hPa
FRVM3 - 8447386 - Fall River, MA 40 mi54 min 68°F 70°F1017.5 hPa
FRXM3 40 mi54 min 67°F 61°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 41 mi122 min WNW 7.8 G 9.7 67°F 64°F2 ft1016.1 hPa
NAXR1 - Narragansett Bay Reserve, RI 44 mi81 min WSW 5.1 64°F 1017 hPa63°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 44 mi48 min W 5.1 G 5.1 65°F 1017.7 hPa
PRUR1 46 mi48 min 66°F 61°F
QPTR1 - 8454049 - Quonset Point, RI 48 mi54 min SW 5.1 G 6 65°F 68°F1017.3 hPa

Wind History for Providence, RI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Norwood, Norwood Memorial Airport, MA8 mi73 minN 010.00 miOvercast61°F55°F84%1017 hPa
East Milton, MA9 mi2.2 hrsWNW 9 mi63°F55°F78%1017.8 hPa
Laurence G Hanscom Field Airport, MA14 mi75 minN 010.00 miFair58°F53°F84%1017.9 hPa
Boston, Logan International Airport, MA15 mi72 minWNW 610.00 miOvercast70°F55°F59%1016.9 hPa

Link to 5 minute data for KOWD

Wind History from OWD (wind in knots)
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Last 24hr----------------CalmCalmCalm----4W5--W11SW11W10
G18
W9W7W4SW3Calm
1 day agoCalm--------------CalmCalmNW3CalmS7S7S12
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2 days ago--Calm------------CalmCalmCalmCalmE9NE10NE11
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E6NE84NE7E4CalmCalm

Tide / Current Tables for Dover St. Bridge, Fort Point Channel, Boston, Massachusetts
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Dover St. Bridge
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Mon -- 01:17 AM EDT     10.12 feet High Tide
Mon -- 06:24 AM EDT     Sunrise
Mon -- 07:27 AM EDT     0.44 feet Low Tide
Mon -- 08:30 AM EDT     Moonset
Mon -- 01:36 PM EDT     9.95 feet High Tide
Mon -- 06:52 PM EDT     Sunset
Mon -- 07:45 PM EDT     0.48 feet Low Tide
Mon -- 08:23 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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910.19.88.56.54.220.60.7246.28.39.79.88.874.82.60.90.51.63.55.6

Tide / Current Tables for Boston Harbor, Massachusetts Current
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Boston Harbor
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Mon -- 12:44 AM EDT     -0.00 knots Slack
Mon -- 05:01 AM EDT     -1.07 knots Max Ebb
Mon -- 06:24 AM EDT     Sunrise
Mon -- 07:19 AM EDT     0.00 knots Slack
Mon -- 08:30 AM EDT     Moonset
Mon -- 09:44 AM EDT     1.14 knots Max Flood
Mon -- 01:05 PM EDT     -0.00 knots Slack
Mon -- 05:13 PM EDT     -1.07 knots Max Ebb
Mon -- 06:52 PM EDT     Sunset
Mon -- 07:44 PM EDT     0.00 knots Slack
Mon -- 08:22 PM EDT     Moonrise
Mon -- 09:52 PM EDT     1.08 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.5-0.2-0.6-0.9-1-1.1-0.9-0.30.61.11.11.10.70.1-0.5-0.8-1-1.1-1-0.60.20.91.11

Weather Map
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wmap_A
GEOS Local Image of Northeast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Boston, MA (2,6,7,8)
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Ground Weather Radar Station Boston, MA
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.